CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2019	Sep. 30, 2018
PROPERTY, PLANT AND EQUIPMENT
Utility plant, at cost	$ 2,549,347	$ 2,368,914
Construction work in progress	219,570	192,481
Nonutility plant and equipment, at cost	784,763	697,406
Construction work in progress	64,000	45,690
Total property, plant and equipment	3,617,680	3,304,491
Accumulated depreciation and amortization, utility plant	(568,996)	(530,753)
Accumulated depreciation and amortization, nonutility plant and equipment	(147,248)	(122,689)
Property, plant and equipment, net	2,901,436	2,651,049
CURRENT ASSETS
Cash and cash equivalents	26,297	1,458
Customer accounts receivable
Billed	174,670	205,490
Unbilled revenues	7,413	7,199
Allowance for doubtful accounts	(6,347)	(5,704)
Regulatory assets	32,920	18,297
Gas in storage, at average cost	132,635	184,633
Materials and supplies, at average cost	14,075	13,910
Prepaid and accrued taxes	24,533	23,047
Derivatives, at fair value	28,337	27,396
Restricted broker margin accounts	44,827	53,719
Assets held for sale	0	206,905
Other	30,611	33,730
Total current assets	509,971	770,080
NONCURRENT ASSETS
Investments in equity method investees	197,660	190,866
Regulatory assets	388,769	368,592
Derivatives, at fair value	14,476	10,560
Investments in equity securities	0	32,917
Intangible assets, net	15,261	23,375
Other noncurrent assets	95,839	96,225
Total noncurrent assets	712,005	722,535
Total assets	4,123,412	4,143,664
CAPITALIZATION
Common stock, $2.50 par value; authorized 150,000,000 shares; outstanding June 30, 2019 — 89,917,854; September 30, 2018 — 88,292,956	226,627	226,196
Premium on common stock	290,414	274,748
Accumulated other comprehensive loss, net of tax	(15,212)	(12,610)
Treasury stock at cost and other; shares June 30, 2019 — 732,777; September 30, 2018 — 2,185,013	(15,628)	(76,473)
Retained earnings	1,085,996	1,007,117
Common stock equity	1,572,197	1,418,978
Long-term debt	1,211,811	1,180,619
Total capitalization	2,784,008	2,599,597
CURRENT LIABILITIES
Current maturities of long-term debt	124,592	123,545
Short-term debt	99,300	151,950
Gas purchases payable	145,243	211,303
Gas purchases payable to related parties	1,150	1,150
Accounts payable and other	96,873	135,240
Dividends payable	26,301	25,824
Accrued taxes	13,164	1,568
Regulatory liabilities	0	8,185
New Jersey Clean Energy Program	15,252	14,052
Derivatives, at fair value	40,677	46,652
Liabilities held for sale	0	4,182
Customers' credit balances and deposits	19,493	27,325
Total current liabilities	582,045	750,976
NONCURRENT LIABILITIES
Deferred income taxes	219,319	242,436
Deferred investment tax credits	3,734	3,976
Deferred gain	1,751	9,104
Derivatives, at fair value	24,923	22,982
Manufactured gas plant remediation	125,566	130,800
Postemployment employee benefit liability	141,187	137,007
Regulatory liabilities	203,660	209,139
Asset retirement obligation	30,149	28,688
Other	7,070	8,959
Total noncurrent liabilities	757,359	793,091
Commitments and contingent liabilities (Note 12)
Total capitalization and liabilities	$ 4,123,412	$ 4,143,664